If your kitchen sink keeps blocking, it is rarely caused by a single issue. In most cases, it is a gradual build up forming inside the pipe over time. Grease, food waste, and everyday residue slowly narrow the flow until water can no longer pass through properly.
In many Edinburgh properties, especially older tenement flats, pipework can be less forgiving. Even a small amount of debris can cling to the inside of the pipe and lead to repeated blockages if not fully cleared.
Grease is usually the main cause. It goes down the sink as a liquid, then cools and sticks to the pipe walls. Once that layer forms, small particles like rice, pasta, and coffee grounds begin to catch on it. Over time, this creates a restriction that keeps returning.
If your dishwasher drains into the same pipe, this can make the issue worse. Extra water flow and residue can push debris further along, meaning the blockage is not always near the plughole.
If you have already tried basic cleaning and the problem keeps coming back, it may be time to look deeper. A recurring blockage often means there is a restriction further along the waste pipe.
If the issue is not improving, having it checked by a professional can prevent ongoing disruption and protect your wider heating system from related drainage issues.
For homeowners in Edinburgh, we offer fixed price quotes, clear communication, and experienced engineers who can identify and resolve the problem properly. Contact us today!